Gibraltar 57004G Threaded Spring Plunger 10-32 Steel

Product Description

The GIBRALTAR 57004G is a threaded spring plunger designed for use in positioning, indexing, and light-duty locking applications in mechanical assemblies. It features a 10-32 thread size with a 3/4-inch thread length and a steel body with an integrated locking element that secures the plunger in position once installed. The plunger projects 1/8 inch and has a maximum plunger diameter of 0.092 inches. Initial end force is 2.9 pounds and final end force is 11.1 pounds, providing consistent spring-loaded engagement across the operating range. This part is installed by machinists, maintenance technicians, and mechanical assemblers working on fixtures, jigs, and precision machinery.

The 57004G is suited for residential and industrial mechanical assemblies where repeatable positioning or light retention is required. Typical applications include machine fixtures, assembly jigs, and tooling components where a threaded, spring-loaded plunger is needed to hold or index a moving part. The steel body and nose construction make it appropriate for metal-to-metal contact environments. The locking element keeps the plunger body fixed in the tapped hole, preventing back-out from vibration or repeated actuation.

Key Features

• 10-32 thread size with 3/4-inch thread length for standard tapped-hole installation
• Steel body and nose material for durability in metal contact applications
• Integrated locking element prevents back-out under vibration
• 1/8-inch plunger projection for controlled engagement depth
• 2.9-pound initial end force and 11.1-pound final end force for consistent spring-loaded retention
• 1/16-inch hex size for installation with a hex key

Compatibility

Designed as a standard threaded spring plunger for use in any tapped 10-32 hole requiring a spring-loaded indexing or positioning element in mechanical assemblies, fixtures, or tooling.

Installation Notes

Installation is performed by threading the plunger body into a tapped 10-32 hole using a 1/16-inch hex key. Ensure the receiving hole is clean and correctly tapped to the specified thread size before installation. The locking element engages during installation to resist loosening; avoid over-torquing, which can damage the locking feature or distort the plunger body. Confirm plunger projection and spring force are appropriate for the application before final assembly.